<template>
  <button @click="isShowDemo=!isShowDemo">切换隐藏/显示</button>
  <Demo v-if="isShowDemo" />
  <hr> 
  <Test />
</template>
<script>
import {ref} from 'vue'
import Demo from './components/Demo'
import Test from './components/Test'
export default {
  name: 'App',
  components: {Demo,Test},
  setup(){
    let isShowDemo = ref(true)
    return {isShowDemo}
  }
}
</script>
